| abstract | - First a tsuiwonasu is sealed with a blood seal, upon which he/she is ready for training at any time. While the pupil sleeps or during leisure time, genjutsu training episodes occur without warning. If the tsuiwonasu initiates training during sleeping hours, it occurs as a dream inserted into the normal rhythm of nightly REM sleep. Regular dreams are not interfered with as they are necessary to the normal healthy functioning of the brain and overall health. However, once these have taken place a genjutsu dream occurs that extends the normal hours of REM sleep. During REM sleep, several physiological changes take place: heart rate and breathing accelerate, blood pressure, body temperature, and brain activity increase. Brain waves reach alpha levels, as when the pupil is awake and relaxed, or higher. The body becomes paralyzed until the end of REM sleep through the release of glycine, an amino acid, from the brain stem onto the motoneurons (neural pathways that conduct impulses outward from the brain or spinal cord). This allows dreams or genjutsu to occur without the body acting out the dream/genjutsu. The disciple then undergoes a vivid dream that is indistinguishable from real life. In this dream, yin and yang chakras are released into system simultaneously. The yin chakra controls the genjutsu, and gradually alters the brain wave patterns (correlated to dominance, dormancy, and activity of cerebral regions) from the student's normal beginner's patterns to those more conducive to learning and executing particular lessons, up to and including those patterns exhibited in the expert mindset. The yang chakra is synchronized to program the cerebellum, medulla oblongata, and muscle memory. These systems are involved in the programming of learned reflexes as opposed to innate reflexes. Training sessions proven by the test of time most helpful to beginners and low level shinobi are passed down across generations to be adapted as needed for modern times. The disciple experiences combat scenarios designed to improve individual or holistic skills, train mental or emotional resilience under stress, or prepare for difficult and even impossible decisions. The acolyte is trained almost as they would be in real life. However, due to the nature of dreams, large amounts of training can be condensed into short time periods and inordinately hazardous situations can be safely carried out, which would normally prove lethal to beginners.
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